2011-09-07_PERMIT FILE - C1981028A (5)

Home Browse Search

• TOPSAND Quantities Required B -Pit (24 inches) Long -term spoil area (15 inches) Topsand piles A -1, A -3, B -1 and B -2 (6 inches) Facilities area ( 6 inches) Access Roads (24 inches) Total Stockpiled Quantities Topsand piles A -1, B -1, B -2 and A -3 Total Remaining 103,921 BCY 98,817 BCY 16,408 BCY 4,840 BCY 12,907 BCY 236,892 BCY 299,187 BCY - 236,892 BCY -from above 62,295 BCY -- surplus CEC will replace 24 inches of topsand on the A- and B -Pit disturbed areas, as well as on . the temporary access and haul roads. The long -term spoil area will receive 15 inches of topsand, and the facilities area and the topsand piles will receive six (6) inches of topsand over the in -place sub - soils. Most of the temporary topsand storage piles have been flattened to a 20 percent (20 %) slope or less. This is the maximum slope encountered over the original ground surface in the existing CEC permit area and vicinity. Topographic maps indicate that 20% slopes are maximum and the overall land slope on the CEC permit area is roughly 2.5 %. Upon completion of the A/MWR disposal operation in either pit area, all waste will be removed or buried to prevent water pollution or adverse visual impacts. Non - salvageable materials will be buried in the pits above the local ground water levels, and at least to four (4) feet below AOC. The final pit highwalls will also be backfilled to AOC. It is noteworthy that there are no acid - forming materials in the coal seam per indications in the sump water data (refer to Section 2.04.7 in this document). Structures previously used in the CEC mining operation will be removed, and the local ground area will be scarified, topsanded, fertilized and revegetated. Also, the shale and gravel paving materials in the equipment parking area will eventually be removed and buried in B -Pit and the former parking area then scarified, topsanded, fertilized and revegetated. 114b 7/11